... 最大牵移范围 Maximum range of elevation epression 气开 Air to open 平动-自动的切换装置 Manual to automatic transfer ...
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...反映闸阀开关两个极限位置,并同时送出指示讯号的装置,操控室可 以根据此讯号,判断闸阀的开关状态以便采取相应措施。气动调节阀动作分气开型和气关型两种。气开型(Air to Open) 是当膜头上空气压力增加时,闸阀向增加开度方向动作,当达到输入气压上限时,闸阀处于全开状态。
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air-to-open 气开式 ; 作用
air-to-open valve 失气关闭阀
air valve to open 气磁控制阀
from open-air to underground 露天转地下
open to air check valve 自动回流阀
The National Parks in England are called "England's Breathing Spaces" because they are places where people can go to be in the open air, away from the dirt and noise of cities.
英国的国家公园被称为“英国的呼吸空间”,因为在那里人们可以远离城市的尘土和噪音,享受户外的空气。
He likes to cook in the open air.
他喜欢在外面做饭。
To take exercise in doors is less beneficial than in the open air.
在室内锻炼不如在室外锻炼更有益。
Because of the open-air stage, actors had to shout very loudly and make big motions to be heard and seen by all.
VOA: special.2010.01.06
It's going to take place in there. It's going to be a constant pressure, it might be open to the air, or even if it isn't, there might be plenty of room, and it's a liquid anyway, so the pressure isn't going to change significantly.
也许它是液体,它在这个位置,这是恒压的,它也许是连通大气的,就算不是,它也有,足够的空间,而它是液体,压强不会显著地改变。
It's a textile center and home to the nation's biggest open-air tobacco market.
VOA: standard.2010.03.18
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